Playlist Bug

[evilcowsan]

Sorry if this is a dupe, i searched the forum and couldn't find anything.

Problem:
Duplicate songs will both show as playing in playlist and the first instance of the song will determine the following track.

Steps to reproduce:
1. Navigate to an album
2. Add a track midway through the album, we'll say 5, to your playlist
3. Click the add all button to add the whole album
4. Find the 2nd instance of track 5(in between track 4 and 6 in the album) and play it

Result:
Both copies of track 5 will show as playing currently and when the track finishes the next track will actually be the first track of the added album(2nd some in the full playlist) because the player thinks the first copy of track 5 was running.

Thanks for your hard work, i love subsonic! This is in no way a critical bug, just figured i'd point it out.